Home / 81,901.31-122,852.65-22,741.59

Finding the Fourth Proportional to 81,901.31, 122,852.65 and 22,741.59

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Solution

The fourth proportional to 81,901.31, 122,852.65 and 22,741.59 is: 34,112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,901.31 : 122,852.65 = 22,741.59 : x
  2. Step 2: Convert to fraction form
    81,901.31/122,852.65 = 22,741.59/x
  3. Step 3: Cross multiply
    81,901.31x = 122,852.65 × 22,741.59
  4. Step 4: Simplify right side
    81,901.31x = 2,793,864,539.86
  5. Step 5: Solve for x
    x = 2,793,864,539.86/81,901.31
  6. Step 6: Final answer
    x = 34,112.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.